We've heard about 1TB-sized optical discs in the past, but TDK has now revealed a 1TB monster of its own at CEATEC. Unlike existing Blu-rays which use four recording layers at most, TDK's creation features 16 layers on both sides of the disc, each capable of storing up to 32GB apiece. If you're keeping track of the optical storage arms race, that's seven more gigabytes per layer than Pioneer's 400GB and